CN109637413B - Display device and method for improving display uniformity - Google Patents
Display device and method for improving display uniformity Download PDFInfo
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- CN109637413B CN109637413B CN201811601367.3A CN201811601367A CN109637413B CN 109637413 B CN109637413 B CN 109637413B CN 201811601367 A CN201811601367 A CN 201811601367A CN 109637413 B CN109637413 B CN 109637413B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
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- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a display device and a method for improving the display uniformity, wherein the display device comprises a display part and a base, the display part internally comprises a display panel, the display device also comprises a solar light collector, the solar light collector is arranged in the display part and positioned at the light emergent side of the display panel, and the solar light collector comprises a plurality of output circuits; the circuit driving unit is arranged in the display device and electrically connected with the output circuit; the solar concentrator converts the light intensity of the display panel into an electric signal, and the electric signal is sent to the circuit driving unit through the output circuit, and the circuit driving unit receives the electric signal and then compensates the light intensity of the display panel according to the electric signal. Compared with the prior art, the light intensity of each area of the display panel does not need to be additionally tested, the circuit design is simpler, and the effect of improving the display uniformity is better.
Description
Technical Field
The present invention relates to a display device and method for improving uniformity of display, and more particularly, to a display device and method for improving uniformity of display by a solar concentrator.
Background
The current panel has a problem of display uniformity degradation after long-term use, and usually, a method for solving the problem of panel display uniformity degradation is a method for compensating the luminance by using an internal driving circuit. In general, in the prior art, it is necessary to accurately measure the luminance of each region of the display panel, and then perform luminance compensation on the corresponding region according to the measurement result. However, the measurement of the brightness of the display panel in the prior art usually has errors, so that the brightness compensation is not accurate, thereby affecting the improvement of the display uniformity.
A solar concentrator (LSC) is a new photovoltaic energy conversion system, which can convert light energy into electrical signals, and the intensity of the converted electrical signals can reflect the intensity of light.
Disclosure of Invention
In view of the problems in the prior art, the present invention provides a display device and a method for improving the uniformity of display.
Therefore, the technical problem to be solved by the present invention is to provide a display device for improving the uniformity of display, the display device includes a display portion and a base, the display portion includes a display panel therein, the display device further includes,
the solar light collector is arranged in the display part and positioned on the light emergent side of the display panel, and comprises a plurality of output circuits; and
the circuit driving unit is arranged in the display device and is electrically connected with the output circuit;
the solar concentrator converts the light intensity of the display panel into an electric signal, and the electric signal is sent to the circuit driving unit through the output circuit, and the circuit driving unit receives the electric signal and then compensates the light intensity of the display panel according to the electric signal.
As an optional technical scheme, the solar light collector is made of transparent materials.
As an optional technical solution, the solar concentrator is formed by a plurality of first blocks, and the positions of the plurality of first blocks correspond to a plurality of second blocks of the display device.
As an optional technical solution, a plurality of the output circuits of the solar concentrator correspond to a plurality of the first blocks, and the output circuits independently output the electrical signals of the corresponding first blocks.
As an optional technical scheme, a connecting circuit among a plurality of first blocks of the solar light collector is made of a transparent conductive material; a plurality of the output circuits are made of transparent conductive materials.
As an optional technical solution, the circuit driving unit includes an analog-to-digital converter, and the analog-to-digital converter is electrically connected to the plurality of output circuits and receives the electrical signals of the plurality of output circuits.
As an optional technical solution, the circuit driving unit includes a compensation unit, and the compensation unit is electrically connected to the display panel.
As an optional technical solution, the display device further includes a switch unit for turning on and off the solar concentrator.
The invention also provides a method for improving the display uniformity, which comprises the following steps:
s1, acquiring the brightness information of the display device;
s2, converting the luminance information into an electrical signal;
s3, converting the electrical signal into a digital signal;
s4, forming a compensation signal according to the digital signal;
and S5, improving the display uniformity through the compensation signal.
As an optional technical solution, the method for improving the display uniformity is applied to the display device.
The display device and the method for improving the display uniformity convert the light intensity of the display panel into an electric signal by adding the externally hung transparent solar light collector on the light-emitting side of the display panel, and obtain the light intensity of each area of the display panel according to the strength of the electric signal. Through further operation and processing of the electric signals, compensation signals corresponding to various areas of the display panel are formed to compensate the light intensity of the display panel. So as to achieve the effect of improving the display uniformity. Compared with the prior art, the light intensity of each area of the display panel does not need to be additionally tested, the circuit design is simpler, and the effect of improving the display uniformity is better.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 is a schematic cross-sectional view of a display device according to the present invention;
FIG. 2 is a schematic diagram illustrating a position relationship between a solar energy concentrator and a display panel of the display device shown in FIG. 1;
FIG. 3 is a schematic view of a solar concentrator of a display device according to the present invention;
FIG. 4 is a schematic diagram of the internal structure of the display device according to the present invention;
FIG. 5 is a flowchart illustrating a method for improving display uniformity according to the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1 to 4, fig. 1 is a schematic cross-sectional view of a display device according to the present invention; FIG. 2 is a schematic diagram illustrating a position relationship between a solar energy collector and a display panel of the display device shown in FIG. 1; FIG. 3 is a schematic view of a solar concentrator of a display device according to the present invention; fig. 4 is a schematic diagram of the internal structure of the display device of the present invention. The display device 1 for improving the display uniformity of the present invention includes a display portion 10 and a base 20, in addition, the display portion 10 further includes a display panel 110, a solar energy collector 120 and a circuit driving unit 130. The solar collector 120 is disposed on the light emitting side of the display panel 110 for receiving light emitted from the display panel 110. The solar concentrator 120 further includes a plurality of output circuits 121, and the plurality of output circuits 121 are electrically connected to the circuit driving unit 130. In practical applications, after the solar light collector 120 receives light emitted from the display panel 110, the received light intensity can be converted into an electrical signal due to the photoelectric property of the solar light collector, and the converted electrical signal has different intensities according to different light intensities. After the solar light collector sends the electric signal to the circuit driving unit, the circuit driving unit further processes and calculates the electric signal and outputs a corresponding compensation signal to compensate the display uniformity of the panel.
Referring to fig. 1, fig. 2 and fig. 3, in the embodiment, the solar concentrator 120 may further include a plurality of first blocks, which are exemplified by nine first blocks a1 to a9, and the positions of the nine first blocks a1 to a9 correspond to nine second blocks B1 to B9 of the display panel. In practical applications, the light emitted from the second block B1 of the display panel 110 is incident to the corresponding first block a1 of the solar concentrator 120, and after the light emitted from the second block B1 is obtained by the first block a1, the corresponding light intensity is converted into an electrical signal intensity by the photoelectric material characteristics of the first block a 1. The first blocks a1 to a9 of the solar concentrator 120 each have an independent output circuit 121, and the output circuit 121 can output the electrical signal in the corresponding first block. By this, can acquire the light intensity that display panel divides the region, and then carry out further operation and compensation to the demonstration degree of consistency, the demonstration degree of consistency compensation that divides the region can make the compensation effect more meticulous, improves the compensation effect. In practical applications, the number and the position of the divided regions may be adjusted according to the requirement of uniformity improvement, but not limited thereto.
In an embodiment, the solar energy collector 120 of the display portion 10 is made of a transparent material, which does not affect the display effect of the display device 1, and the specific material thereof may be an existing transparent photoelectric conversion material, and is not limited to the specific material. Referring to fig. 3, nine first blocks a1 to a9 of the solar concentrator 120 are all made of the same transparent photoelectric conversion material and have the same refractive index, so that the nine first blocks a1 to a9 are spliced to form a transparent cover plate close to a whole block of the solar concentrator 120, a connection circuit between the nine first blocks a1 to a9 is made of a transparent conductive material, and the output circuits 121 are also made of a transparent conductive material (for example, an ITO transparent conductive material, a nano silver wire transparent conductive material, a metal mesh transparent conductive material, and the like). Therefore, the solar light collector of the invention does not influence the display of the display device.
Referring to fig. 4, in the embodiment, the display device 1 further includes a circuit driving unit 130 therein, and the circuit driving unit 130 includes a digital-to-analog converter 131 and a compensation unit 132. The digital-to-analog conversion unit 132 is electrically connected to the output circuit 121 of the solar concentrator 120, and the compensation unit 132 is electrically connected to the digital-to-analog converter 131 and the display panel 110. The solar concentrator 120 converts light energy into an electrical signal, and the electrical signal is input to the digital-to-analog converter 131 through the output circuit 121, and the digital-to-analog converter 131 converts the received electrical signal into a digital signal. The digital-to-analog converter 131 inputs the digital signal to the compensation unit 132 for further operation and processing, and the compensation unit 132 outputs a compensation signal to the display panel 110 for compensating the display uniformity of the display panel 110. Therefore, the display uniformity of the display panel is improved through the solar light collector and the circuit driving unit, the solar light collector can acquire the light intensity of the display panel in real time, and the display uniformity of the display panel is compensated through the circuit driving unit in real time.
With continued reference to fig. 1 to 4, in the embodiment, the display device 1 further includes a switch unit (not shown in the drawings), which is disposed inside the display device 1 and electrically connected to the solar energy collector 120 for turning on and off the solar energy collector 120. When the switch unit is turned on, the solar collector 120 can obtain the light intensity of the display panel 110 in real time, compensate the display uniformity of the display panel 110 in real time through the circuit driving unit 130, and compensate the display uniformity for multiple times until the display uniformity achieves the optimal effect; when the display uniformity reaches the optimal effect, the solar concentrator 120 can be turned off, thereby avoiding energy waste.
Referring to fig. 5, fig. 5 is a flowchart illustrating a method for improving display uniformity according to the present invention. The method for improving the display uniformity in the invention is applied to the display device in the embodiment, and comprises the following specific steps:
s1, acquiring brightness information of the display device;
in one embodiment, the light brightness information emitted by the display panel is obtained by the solar concentrator.
S2, converting the brightness information in step S1 into an electric signal;
in a specific embodiment, the solar concentrator converts the light intensity information obtained in step S1 into an electrical signal, and the stronger the light intensity is, the stronger the intensity of the converted electrical signal is, so as to obtain the light intensity of each area of the display panel.
S3, converting the electric signal in the step S2 into a digital signal;
in one embodiment, the electrical signal in step S2 is converted into a digital signal by a digital-to-analog converter for subsequent operation and processing.
S4, forming a compensation signal according to the digital signal in the step S3;
in the embodiment, the digital signal formed by the digital-to-analog converter in step S3 is further processed to form a compensation signal corresponding to the region of the display panel that needs to be compensated.
S5, the display uniformity is improved by the compensation signal in step S4.
In the embodiment, the compensation signal formed in step S4 is input into the corresponding region of the display panel that needs to be compensated, so as to improve the display uniformity.
In summary, the display device and the method for improving the display uniformity of the present invention convert the light intensity of the display panel into the electrical signal by adding the externally-hung transparent solar energy collector on the light emitting side of the display panel, and obtain the light intensity of each area of the display panel according to the intensity of the electrical signal. And forming a compensation signal to compensate the light intensity of the display panel through further operation and processing of the electric signal. So as to achieve the effect of improving the display uniformity. Compared with the prior art, the light intensity of each area of the display panel does not need to be additionally tested, the circuit design is simpler, and the effect of improving the display uniformity is better.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A display device for improving the display uniformity comprises a display part and a base, wherein the display part comprises a display panel, and is characterized in that the display device also comprises a display panel,
the solar light collector is arranged in the display part, covers the display area of the display panel and is positioned on the light-emitting side of the display panel, and comprises a plurality of output circuits; and
the circuit driving unit is arranged in the display device and electrically connected with the output circuit;
the solar light collector converts the light intensity of the display panel into an electric signal and sends the electric signal to the circuit driving unit through the output circuit, and the circuit driving unit receives the electric signal and then compensates the light intensity of the display panel according to the electric signal.
2. The display apparatus of claim 1, wherein the solar concentrator is made of a transparent material.
3. The display device as claimed in claim 1, wherein the solar concentrator is formed of a plurality of first sections, the plurality of first sections being positioned corresponding to a plurality of second sections of the display device.
4. The display device according to claim 3, wherein a plurality of the output circuits of the solar concentrator correspond to a plurality of the first blocks, and the output circuits independently output the electrical signals of the corresponding first blocks.
5. The display device according to claim 3, wherein the connecting circuit between the first blocks of the solar concentrator is made of transparent conductive material; a plurality of the output circuits are made of transparent conductive materials.
6. The display device according to claim 1, wherein the circuit driving unit comprises a digital-to-analog converter electrically connected to the plurality of output circuits and receiving the electrical signals of the plurality of output circuits.
7. The display device according to claim 1, wherein the circuit driving unit comprises a compensation unit electrically connected to the display panel.
8. The display device of claim 1, further comprising a switching unit for turning on and off the solar concentrator.
9. A method for improving display uniformity, the method comprising:
s1, acquiring brightness information of the whole display area of the display device by using the solar light collector;
s2, converting the luminance information into an electrical signal;
s3, converting the electrical signal into a digital signal;
s4, forming a compensation signal according to the digital signal;
s5, improving the display uniformity by the compensation signal;
wherein, this display device includes the display part, and this display part is inside to include display panel, and this solar energy light collector sets up inside the display part, and this solar energy light collector covers this display panel's display area, and is located this display panel's light-emitting side.
10. The method for improving display uniformity as claimed in claim 9, wherein the method is applied to a display device as claimed in any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811601367.3A CN109637413B (en) | 2018-12-26 | 2018-12-26 | Display device and method for improving display uniformity |
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| CN201811601367.3A CN109637413B (en) | 2018-12-26 | 2018-12-26 | Display device and method for improving display uniformity |
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| CN109637413B true CN109637413B (en) | 2022-07-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109036291A (en) * | 2018-09-18 | 2018-12-18 | 京东方科技集团股份有限公司 | A kind of display panel and its control method, display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050185416A1 (en) * | 2004-02-24 | 2005-08-25 | Eastman Kodak Company | Brightness enhancement film using light concentrator array |
| US7172295B2 (en) * | 2004-05-10 | 2007-02-06 | Infocus Corporation | LED control system with feedback |
| KR100662576B1 (en) * | 2005-07-27 | 2006-12-28 | 삼성전자주식회사 | Optical device testing apparatus and testing method using the same |
| US8941631B2 (en) * | 2007-11-16 | 2015-01-27 | Qualcomm Mems Technologies, Inc. | Simultaneous light collection and illumination on an active display |
| WO2011133553A1 (en) * | 2010-04-19 | 2011-10-27 | Mowry Craig P | Display system and device with sustainable power generation |
| CN103258486A (en) * | 2012-02-17 | 2013-08-21 | 鸿富锦精密工业（深圳）有限公司 | Monitoring device |
| CN102622960A (en) * | 2012-03-16 | 2012-08-01 | 中国科学院西安光学精密机械研究所 | Brightness adjustment device for light emitting diode (LED) display device, LED display system and manufacturing method for LED display system |
| CN107958193B (en) * | 2017-08-17 | 2020-07-28 | 深圳信炜科技有限公司 | Display module and electronic equipment |
| CN107784932A (en) * | 2017-09-27 | 2018-03-09 | 苏州佳世达电通有限公司 | Display device |
| CN207883237U (en) * | 2018-01-19 | 2018-09-18 | 昆山国显光电有限公司 | A kind of display screen of organic luminescent device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109036291A (en) * | 2018-09-18 | 2018-12-18 | 京东方科技集团股份有限公司 | A kind of display panel and its control method, display device |
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